These include: 55%. Plasma. 45%. Components (sometimes called formed elements), i.e. 'Blood Cells'. Of these, 99% are erythrocytes (red blood cells). and 1% are leucocytes (white blood cells) and thrombocytes (blood platelets). This is summarised in the following diagram, and described in further detail below.
The prefix a- comes from the Greek meaning not.. ab-: Prefix from the Latin meaning from, away from, off as in abduction (movement of a limb away from the midline of the body), ablate (carry or cut away), abnormal (away from normal), absorb (to suck away). Abs in the plural is slang for the abdominal muscles.
English - United States. The two words can be used interchangeably so far as I know. I think that normality sometimes stresses the sense of being average, while normalcy stresses the sense of being habitual. However, this is a difference that not all English speakers would recognize or agree on. My family tends to use normality, but most people in our region of the U.S. tend to use normalcy.